Speed on a phone is the only speed that counts

Dear brand owner,

Here's an uncomfortable truth: your store probably feels quick to you because you're testing it on a good laptop, on office wifi, with everything cached. Your customers are not.

Most of them are on a mid-range phone, on mobile data, seeing the site fresh.

Test like they browse

• Use a real, ordinary phone, not just your newest one
• Throttle the connection to something like a slow 4G
• Clear the cache so you see the first visit, the one that counts

Do that and the store you thought was fast often tells a different story.

The only performance number that matters is the one your customer feels on their phone, on their network, on their first visit.

Where the wins are

Heavy images, blocking scripts and too many apps hit mobile hardest. Fixing them there fixes them everywhere. Prioritise the first screen: get the main content and the buy path loading quickly, and the rest can follow.

Judge speed by the worst realistic case, not the best. That's the experience most of your revenue actually has.